EP1180384A2 - Procédé de commande du déplacement du point de vue d'une caméra simulée dans un jeu vidéo 3D, et une appareil de jeu vidéo 3D - Google Patents

Procédé de commande du déplacement du point de vue d'une caméra simulée dans un jeu vidéo 3D, et une appareil de jeu vidéo 3D Download PDF

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Publication number
EP1180384A2
EP1180384A2 EP01118807A EP01118807A EP1180384A2 EP 1180384 A2 EP1180384 A2 EP 1180384A2 EP 01118807 A EP01118807 A EP 01118807A EP 01118807 A EP01118807 A EP 01118807A EP 1180384 A2 EP1180384 A2 EP 1180384A2
Authority
EP
European Patent Office
Prior art keywords
head
game player
game
game machine
video game
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01118807A
Other languages
German (de)
English (en)
Other versions
EP1180384A3 (fr
Inventor
Nobuya Okuda
Tatsuya Kobayashi
Hirofumi Fujimoto
Shigenobu Matsuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konami Group Corp
Original Assignee
Konami Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konami Corp filed Critical Konami Corp
Publication of EP1180384A2 publication Critical patent/EP1180384A2/fr
Publication of EP1180384A3 publication Critical patent/EP1180384A3/fr
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/50—Controlling the output signals based on the game progress
    • A63F13/52—Controlling the output signals based on the game progress involving aspects of the displayed game scene
    • A63F13/525—Changing parameters of virtual cameras
    • A63F13/5255—Changing parameters of virtual cameras according to dedicated instructions from a player, e.g. using a secondary joystick to rotate the camera around a player's character
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
    • A63F13/10—
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
    • A63F13/213—Input arrangements for video game devices characterised by their sensors, purposes or types comprising photodetecting means, e.g. cameras, photodiodes or infrared cells
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
    • A63F13/218—Input arrangements for video game devices characterised by their sensors, purposes or types using pressure sensors, e.g. generating a signal proportional to the pressure applied by the player
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/45—Controlling the progress of the video game
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/80—Special adaptations for executing a specific game genre or game mode
    • A63F13/837—Shooting of targets
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/10—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
    • A63F2300/1012—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals involving biosensors worn by the player, e.g. for measuring heart beat, limb activity
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/10—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
    • A63F2300/1087—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals comprising photodetecting means, e.g. a camera
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/30—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by output arrangements for receiving control signals generated by the game device
    • A63F2300/303—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by output arrangements for receiving control signals generated by the game device for displaying additional data, e.g. simulating a Head Up Display
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/60—Methods for processing data by generating or executing the game program
    • A63F2300/66—Methods for processing data by generating or executing the game program for rendering three dimensional images
    • A63F2300/6661—Methods for processing data by generating or executing the game program for rendering three dimensional images for changing the position of the virtual camera
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/60—Methods for processing data by generating or executing the game program
    • A63F2300/66—Methods for processing data by generating or executing the game program for rendering three dimensional images
    • A63F2300/6661—Methods for processing data by generating or executing the game program for rendering three dimensional images for changing the position of the virtual camera
    • A63F2300/6676—Methods for processing data by generating or executing the game program for rendering three dimensional images for changing the position of the virtual camera by dedicated player input
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
    • A63F2300/8076—Shooting

Definitions

  • the present invention relates to a technique for a three-dimensional (3D) video game machine including a monitor provided at a specified height position of a casing of the game machine for displaying images, a game control unit for controlling the progress of a game, and a display control unit for generating a simulated 3D image viewed from a viewing point of a simulated camera and displaying it on the monitor screen.
  • a monitor provided at a specified height position of a casing of the game machine for displaying images
  • a game control unit for controlling the progress of a game
  • a display control unit for generating a simulated 3D image viewed from a viewing point of a simulated camera and displaying it on the monitor screen.
  • the latter viewing point changing technique is adapted to respond to the movements of the upper half of the game player's body seated on the seat, i.e. change an image when a preset viewing point is changed from a predetermined one to the another predetermined one selected from a plurality of predetermined viewing points.
  • the change from one to the other is carried out within the limited choices among the predetermined viewpoints. It is likely that the player can learn the pattern of changes in viewpoint so that he/she can predict the change pattern in viewpoint by playing the game several times, giving the player a monotonous feel towards viewpoint changes.
  • an object of the present invention is to provide a method for controlling a viewing point of a simulated camera in a 3D video game which method enables images from a viewing point intended by a game player to be actively displayed by causing the viewing point of the simulated camera to follow a free movement of the game player, and to provide a video game machine.
  • a 3D video game machine comprises a monitor provided at a specified height position of a casing of the game machine for displaying images, a game control unit for controlling the progress of a game, a display control unit for generating a 3D image viewed from a viewing point of a simulated camera and displaying it on a screen of the monitor, head detecting means for detecting at least a position of the head of a game player located in a play area before the screen of the monitor in at least one linear direction in a 3D space, and viewing point changing means for moving the viewing point of the simulated camera to follow a displacing direction and a displacing amount of the detected position of the head.
  • FIG. 1 is a perspective view showing one embodiment of a simulated 3D video game machine according to the present invention.
  • This game machine is provided with a game main unit 10, an operation casing 20 integrally or detachably or individually provided in front of the game main unit 10, and a head detector 30.
  • a play area where a game player stands to play a game is defined before the operation casing 20.
  • the game main unit 10 is a console box substantially in the form of a rectangular parallelepiped, and a monitor 11 of a specified size for displaying game images is provided substantially in the middle of the front surface of the game main unit 10, preferably at such a height position where the game player's head is located substantially in the middle of the screen in a usual posture of the game player playing the game.
  • a CRT an LCD, a plasma display, a liquid crystal projector and the like
  • Loudspeakers 12 for presenting sound effects are provided at the top, preferably at the left and right sides of the game main unit 10, and a panel or the like on which the name of the game, etc. is inscribed is provided therebetween.
  • a circuit board on which controllers necessary to control the gaming operation, etc. is provided inside the game main unit 10.
  • a rectangular frame member 13 extending forward like eaves is provided at the top of the game main unit 10, and supporting arms 13a are provided between suitable positions of left and right frame pieces of the frame member 13 and the side surfaces of the operation casing 20.
  • a specified number of, e.g. three light sources 14 for electric decoration so as to correspond to three primary colors are provided on the front frame piece of the frame member 13 in such a manner as to face toward the game main unit 10.
  • the frame member 13 functions as a supporting structure for the head detector 30, and is adapted to locate the head detector above the play area, i.e. above the game player's head.
  • An ultrasonic transmitter 31 for transmitting sound waves and ultrasonic waves as propagation mediums is provided in the transverse center of the front frame piece of the frame member 13, and ultrasonic receivers 32, 33 for receiving the ultrasonic waves as propagation mediums are transversely symmetrically provided with respect to the ultrasonic transmitter 31.
  • ultrasonic waves rays, particularly infrared rays may be used as the propagation mediums.
  • Any of the ultrasonic transmitter 31 and the ultrasonic receivers 32, 33 is formed by a piezoelectric device or the like.
  • the ultrasonic transmitter 31 transmits an ultrasonic pulse of a specified duration at such a width of directivity as to cover the play area and in a specified cycle of, e.g. 1/60 sec. or in such a time cycle capable of following a displacement of the game player's head at a necessary resolving power.
  • the ultrasonic receivers 32, 33 are identically constructed and have a width of directivity sufficient to receive the ultrasonic waves transmitted from the ultrasonic transmitter 31 and reflected by the game player's head located in the play area.
  • In the head detector 30 are provided, as shown in FIG.
  • the sensor driver 34 and the position calculator 35 may be provided in the main game unit 10.
  • the height of the operation casing 20 is set lower than the monitor 11.
  • a loudspeaker 21 for presenting sound effects is provided in the middle of the upper surface slightly sloped downward to the front, i.e. in a position closer to the game player than the loudspeakers 12, and a gun unit 22 simulating a gun as a game controller is provided in a specified position near the loudspeaker 21 via a cord 23 as a transmission line for control signals, etc.
  • the gun unit 22 is stored in a containing box 20a as shown when not being used, while being held by the game player when being used, i.e. during the game to shoot the enemy characters displayed on the monitor screen as described later.
  • a start switch 24, a coin slot 25, and the like are provided on the front surface of the operation casing 20.
  • a coin switch 25a (see FIG. 2) for detecting the presence or absence of an inserted coin is provided in an intermediate position of a coin path connected with the coin slot 25.
  • FIG. 2 is a block construction diagram of the 3D video game machine.
  • a game control unit 100, an image control unit 110 and a sound control unit 120 are mounted on the circuit board in the main game unit 10.
  • This game is, for example, a fighting game and assumes a battle of shooting between one or more gun-holding enemy characters displayed on the monitor screen and the game player.
  • the enemy character displayed on the monitor screen is so controlled by the game control unit 100 as to shoot at a viewing point of a simulated camera, whereas the game player shoots the enemy character on the monitor 11 using the gun unit 22 while avoiding an attack from this enemy character.
  • the game control unit 100 is provided with, for example, a microcomputer (hereinafter, "CPU") 101 for controlling the progress of the game, and connected with a ROM 102 as a storage medium storing a game program such as a shooting battle game which is the game of this embodiment, the head detector 30 and other necessary elements.
  • a game program such as a shooting battle game which is the game of this embodiment, the head detector 30 and other necessary elements.
  • ROM read only memory
  • ROM cassette a ROM cassette, an optical disk, a flexible disk or the like may be used as the storage medium.
  • the image control unit 110 performs calculation of coordinates of the respective characters (enemy characters, various buildings and other object characters located in a game space) in a simulated 3D space when viewed from the viewing point of the simulated camera, a light source calculation, a calculation to transform the calculated coordinates in the simulated 3D space to those in a two-dimensional space, a processing to position polygons constituting an image to be formed in a display area of a RAM 111 and a texture mapping to the respective polygons.
  • a position information transmitted from the head detector 30 as described later is used as an information on the viewing point of the simulated camera which is used in the calculation of the coordinates of the characters. Accordingly, the viewing point of the simulated camera substantially coincides with the eyes of the game player, and a character corresponding to the game player is not displayed on the screen of the monitor 11.
  • the sound control unit 120 reads a sound data set in the game program according to the scene of the game from a sound data storage 121 and causes the read data to be outputted as sounds from either one of the loudspeakers 12, 21.
  • a sound data storage 121 In addition to BGMs and various presentation sounds, shooting sounds, bullet-hitting sounds, sounds the stray bullets make while flying through the air, sounds the stray bullets make upon striking against obstacles displayed in front of the viewing point and other sounds are prepared as the sound data.
  • the sound data are stored, for example, in PCM data format and are digital-to-analog converted, filtered and amplified after being read to be outputted from the loudspeakers as sounds.
  • the CPU 101 is provided with a functional portion for performing a trajectory calculation.
  • the trajectory of the bullet the enemy character displayed on the monitor screen shot at the game player by a shooting control of the CPU 101 is successively calculated based on an information on a firing position and a shooting direction by this functional portion.
  • the image control unit 110 performs a processing of successively drawing the trajectory on the monitor screen based on the successively obtained calculation results (alternatively, only the presentation image at the time of shooting may be pictured without picturing the trajectory).
  • the sound controller 120 is provided with a functional portion for selectively switching the loudspeakers 12, 21 to output sounds according to, for example, a distance between the calculated trajectory of the bullet and the viewing point of the simulated camera as described later.
  • the CPU 101 is provided with a function of determining whether or not a bullet shot by the enemy character will hit the game player. This judgment is made based on, for example, whether or not any obstacle exists between the enemy character and the viewing point of the simulated camera or whether or not a distance therebetween is fairly long. Alternatively, a hit rate may be set at random and may be suitably changed according to the progress of the game, etc. or may be changed according to a life gauge of the game player.
  • the CPU 101 is also provided with a function of decreasing the life gauge by a specified amount when the game player is shot and a function of judging whether or not the life gauge has decreased to 0.
  • the gun unit 22 has an outer configuration similar to that of a gun, and an operation of pulling a trigger biased toward an initial position by a biasing means is detected by detecting a linked movement of a movable piece of a switch and such a detection is introduced in the form of a shooting command signal to the game control unit 100 via the cord 23.
  • a light detecting sensor is so built in the gun unit 22 as to have a narrow directivity at the muzzle.
  • the CPU 101 functioning as a shooting position detector of the game control unit 100 interrupts an imaging processing to the monitor 11, sweeps a luminescent spot in horizontal(H) and vertical (V) directions for, e.g. only one frame, and measures a time which lapses until the light detecting sensor in the gun unit 22 detects this luminescent spot after the start of sweeping. Since a sweeping period for one frame is known from an adopted sweeping method, the gun unit 22 is assumed to have faced at the calculated coordinate position, i.e. to have been fired by inversely calculating the coordinate position of the luminescent spot on the screen of the monitor 11 based on the measured time. Alternatively, a following method may be adopted.
  • An infrared CCD camera is mounted in the muzzle, whereas one or two infrared spot light sources are arranged at fixed positions near the monitor 11.
  • a direction in which the camera was faced, i.e. a position toward which the gun unit 22 was faced is detected based on coordinates of the spot light source(s) within an image picked up by the CCD camera when the trigger was pulled.
  • the CPU 101 successively calculates the trajectory of the bullet shot by the game player in the game space on the screen of the monitor 11 and judges whether or not the shot bullet has hit the enemy character displayed on the screen by preferably causing the bullet to be displayed on the screen every time calculation is made. Whether or not the bullet has hit the enemy character is judged based on the results of the successively calculated trajectory and the coordinates of the position of the enemy character, i.e. based on whether the calculated coordinates of the bullet and the coordinates of the position of the enemy character coincide or substantially coincide.
  • the position calculator 35 measures periods which lapse until the rise of the pulse signals received by the ultrasonic receivers 32, 33 after the ultrasonic pulse was transmitted, and performs a geometric calculation using distance data obtained by converting the measured periods based on an air propagating sound velocity, distances between the ultrasonic transmitter 31 and the ultrasonic receiver 32 and between the ultrasonic transmitter 31 and the ultrasonic receiver 33, and a height information, thereby calculating the position of the game player's head in height direction and in transverse direction.
  • the measured periods at the side of the ultrasonic receiver 32 determine an ellipse having the ultrasonic transmitter 31 and the ultrasonic receiver 32 as foci.
  • the measured periods at the side of the ultrasonic receiver 33 determine another ellipse having the ultrasonic transmitter 31 and the ultrasonic receiver 33 as foci. Since the position of the ultrasonic transmitter 31 is same, a bottommost intersection of the two ellipses can be calculated (intersection calculation 351), the position of the game player's head in height direction and in transverse direction in the space can be determined using the height information of the ultrasonic transmitter 31 and the ultrasonic receivers 32, 33 (position determination 352). In order to simplify the calculations, the intersection may be calculated assuming that the game player's head is located right below the ultrasonic transmitter and receivers 31, 32, 33, i.e. only by the calculation of the ellipses.
  • a relationship between the two measured periods (i.e. the two distance data) and the position of the head may be calculated in advance and may be stored in a table format (LUT).
  • the position calculator 35 sends the thus calculated position of the game player's head in height direction and in transverse direction in the space to the game control unit 100 as the viewing point information of the simulated camera. Accordingly, the viewing point of the simulated camera can be so changed or moved as to correspond to the position of the game player's head, i.e. follow a displacing amount and a displacing direction of the position of his head.
  • FIGS. 4A to 4D are diagrams showing one example of a change of the viewing point of images on the monitor screen when the game player's head is vertically moved
  • FIG. 5 is a diagram showing a game playing state of the game player.
  • FIGS. 4A to 4D correspond to a lapse of time and show four scenes when the game player gradually rises from a half-sitting posture (see FIG. 5) to a substantially upright posture in a direction of an arrow in front of the main game unit 10, i.e. the game player's head (eyes) is displaced upward from below.
  • FIG. 5 is a diagram showing a game playing state of the game player.
  • FIGS. 4A to 4D correspond to a lapse of time and show four scenes when the game player gradually rises from a half-sitting posture (see FIG. 5) to a substantially upright posture in a direction of an arrow in front of the main game unit 10, i.e. the game player's head (eyes) is displaced upward from below
  • FIG. 4A shows a state where there is an obstacle B like a desk right in front of the viewing point, the game player hides himself before the obstacle B at the front side, and part of the head of an enemy character AC1 holding a gun is seen behind the obstacle B.
  • the scene shown in FIG. 4B is reached when the game player slightly lifts his head from the state of FIG. 4A, and shows that only the eyes of the game player are in alignment with the upper surface of the obstacle B, the enemy character AC1 is seen up to his chest, and two other enemy characters AC2, AC3 are newly seen behind the enemy character AC1.
  • the scene of FIG. 4A shows a state where there is an obstacle B like a desk right in front of the viewing point, the game player hides himself before the obstacle B at the front side, and part of the head of an enemy character AC1 holding a gun is seen behind the obstacle B.
  • the scene shown in FIG. 4B is reached when the game player slightly lifts his head from the state of FIG. 4A, and shows that only the eyes of the game player are
  • FIGS. 4A to 4D are reached when the game player straightens his back to further lift his head, and shows that the eyes of the game player are slightly exposed from the upper surface Bs of the obstacle B, the upper halves of the bodies of the three enemy characters AC1, AC2, AC3 are seen and the upper surface Bs of the obstacle B is also slightly seen.
  • the scene of FIG. 4D is reached when the game player stands upright, and shows that the game player is exposed from the obstacle B up to his neck and the upper surface Bs is more widely seen. As the eyes of the game player rise, the upper surface Bs of the obstacle B is gradually lowered as shown in FIGS. 4A to 4D.
  • FIGS. 6A to 6D are diagrams showing one example of a change of the viewing point of images on the monitor screen when the game player's head is transversely moved
  • FIG. 7 is a diagram showing a game playing state of the game player.
  • FIGS. 6A to 6D correspond to a lapse of time and show four scenes when the game player gradually is moved to left in a direction of an arrow from the right side (see FIG. 7) of the main game unit 10, i.e. the game player's head (eyes) is displaced leftward from right.
  • FIG. 7 is a diagram showing a game playing state of the game player.
  • FIGS. 6A to 6D correspond to a lapse of time and show four scenes when the game player gradually is moved to left in a direction of an arrow from the right side (see FIG. 7) of the main game unit 10, i.e. the game player's head (eyes) is displaced leftward from right.
  • FIG. 6A shows a state where an obstacle B like a door or a wall exists right in front of and on the right side of the viewing point, the game player hides himself behind the obstacle B, and part of an arm of the enemy character AC1 holding a gun is seen on the other side of the obstacle B.
  • the scene of FIG. 6B is reached when the game player slightly moves his head to left from the state of FIG. 6A, and shows that only the eyes of the game player are slightly exposed from the left end of the obstacle B and the face and the chest of the enemy character AC1 can be seen.
  • FIG. 6C is reached when the game player further moves his head to left, and shows that the game player's head is slightly more exposed from the left end of the obstacle B, the upper half of the body of the enemy character AC1 is seen and part of another enemy character AC2 is newly seen behind the enemy character AC1.
  • the scene of FIG. 6D is reached when the game player jumps to left from the obstacle B to expose the upper half of his body, and shows that still another enemy character AC3 is seen in addition to the two enemy characters AC1, AC2.
  • the head detector 30 can detect the vertical and transverse positions of the game player's head, when his head moves while having components of two directions, i.e. vertical direction and transverse direction, the viewing point can be moved accordingly, i.e. in an oblique direction.
  • FIG. 8 is a flow chart showing an example of a game progress processing executed by the CPU 101.
  • the main routine starts, whereby a demonstration screen is first displayed on the monitor 11 (Step ST1).
  • a start screen is displayed (Step ST3) and the gaming processing as a shooting game is executed (Step ST4).
  • the game is comprised of a specified number of stages, a judgment is made as to whether a specified condition is not met during each stage.
  • Step ST6 an ending demonstration screen presenting a commendation is displayed (Step ST6) and the game-over screen is displayed (Step ST7) after displaying scores or the like if necessary, thereby ending the game.
  • FIG. 9 is a flow chart showing a subroutine "Gaming Processing" executed in Step ST4.
  • a judgment is made as to whether or not a gaming time set for each stage and measured by a built-in timer has elapsed (Step ST11) and then it is discriminated whether there still remains any life gauge (Step ST12) if the gaming time has not elapsed yet. If the discrimination results in both Steps ST11, ST12 are negative, Step ST7 follows.
  • an I/O processing is executed, i.e. an information on the position of the game player's head, i.e. an information substantially on the positions of the game player's eyes is transferred from the head detector 30 (Step ST13).
  • Step ST14 It is then discriminated whether the current viewing point is an objective viewing point or a subjective viewing point.
  • the CPU 101 functioning as an objective/subjective viewing point switching means and the timer causes an overall situation of the game space, i.e. an image of a wide area to be displayed by retracting the simulated camera to include the player character so that the game player can grasp and recognize where he is in the game space.
  • the viewing point is set at the subjective viewing point.
  • the viewing point is switched to the objective one based on the game player's eyes.
  • Step ST14 if the viewing point is the subjective one, the game image is formed at the viewing point independent of the information obtained by the I/O processing (Step ST15), and if a shooting battle occurs, an interrupt processing for the sound control starts to output the respective sounds relating to shooting from the loudspeakers 12 (or both the loudspeakers 12 and 21) (Step ST16).
  • Step ST17 the information obtained by the I/O processing
  • Step ST18 the respective sounds relating to shooting are separately outputted from the loudspeakers 12 or the loudspeaker 21 by the interrupt processing.
  • Step ST18 it is discriminated whether the current stage has been completed. Unless the current stage has been completed, this subroutine returns to Step ST11 and the operations of Steps ST11 to ST18 are repeated. If it has been completed, this subroutine returns to Step ST6 to exit therefrom.
  • FIG. 10 is a flow chart showing an "Interrupt Processing" in response to shooting from the enemy character in a subroutine "Sound Processing based on a Viewing Point" executed in Step ST18.
  • the interrupt processing for the sound output is started upon firing by the enemy character, and it is discriminated whether a distance in the game space between the object which is supposed to make sounds (sound-making object) and the viewing point is smaller than a threshold value used in judging a long or short distance (Step ST21).
  • the sound-making object may be a bullet fired by the enemy character or an obstacle which is located before the viewing point and on which the fired bullet hits.
  • Step ST22 when the bullet from the enemy character hits the obstacle before the viewing point, hitting sounds are outputted from the loudspeaker 21 (Step ST22) if the distance to this obstacle is smaller than the threshold value (if it is close) while being outputted from the loudspeakers 12 (Step ST23) if the distance is larger than the threshold value (if it is distant).
  • the sound control unit 120 is provided with a function of judging that the fired bullet passed such a point very close to the viewing point that the bullet is assumed to have hit the game player based on the result of distance between the position of the bullet successively obtained by the trajectory calculation and the viewing point. Upon making such a judgment, the sound controller 120 executes such a presentation as to, for example, temporarily shake the screen, decreases the life gauge by a specified value as a hit processing to the game player (hit-presentation processing) and causes the hitting sounds to be outputted from the loudspeaker 21 (Step ST22).
  • Step ST22 a sound of the bullet hurtling through the air is outputted from the loudspeaker 21 at a timing when the calculated distance between the position of the bullet whose trajectory is successively calculated and the viewing point becomes smaller than the threshold value.
  • the shooting sounds from the game player may be, for example, outputted from the loudspeaker 21.
  • the output of the sounds is switched such that the sounds are outputted from the loudspeakers 12 more distant from the game player if the sound-making object is distance from the viewing point, whereas they are outputted from the loudspeaker 21 if it is close to the game player.
  • a game having an acoustically better presence can be provided.
  • Step ST24 Upon completion of the sound output processing for a certain sound, it is then discriminated whether the sound output processing for all sounds has been completed, i.e. whether any presentation (hitting on the obstacle before the viewing point, hitting on the game player or missing the game player by passing right beside him) in response to one fired bullet has occurred (Step ST24). Step ST21 follows if no presentation has occurred, whereas this subroutine returns on the assumption that the sound output processing for this bullet has been completed if some presentation has occurred. It should be noted that the number of the loudspeaker 21 is not limited to one, and two loudspeakers 21 may be arranged side by side.
  • sounds may be outputted while switching the left and right loudspeakers according to whether the game player's head is located at the left or right side within the play area or a further better acoustic presence may be provided by, for example, the switching of the acoustic effect in transverse direction in addition to the switching thereof according to the distance by adjusting a volume ratio to conform to the situation.
  • FIG. 11 is a perspective view showing a second embodiment of the 3D video game machine according to the present invention
  • FIG. 12 is a block construction diagram for the detection of the game player's head.
  • this game machine is slightly different from the one shown in FIG. 1 in appearance, the two game machines are substantially identical in function except the construction of the head detector 30.
  • a head detector 130 is comprised of, for example, a CCD camera 131 as an image pickup means arranged right below the monitor 11 and in a transversely center position, a background deleting member 132 provided at a side of the play area opposite from the CCD camera 131, a silhouette image extracting means 133 as a functional portion, a human silhouette characteristic data memory 134 for storing a human silhouette characteristic data and a position determining device 135.
  • the CCD camera 131 is oriented such that its side toward the play area serves as an image sensing area.
  • the background deleting member 132 includes a rectangular support 132a standing at the front side as if it would surround the play area, an upper horizontal coupling arm 132b to be coupled with the main game unit 10 to hold the support 132a upright, and a screen 132c having a stripe pattern of a specified single color such as blue, a two-color stripe pattern or the like adhered to the upper half of the support 132a on its outer surface.
  • the screen 132c is of such a size and a form, preferably a rectangular form as to cover a range where the game player's head can be possibly displaced in a usual gaming posture and is provided at such a height position as to cover his head regardless of whether the game player is in his bending posture or in his upright posture.
  • the screen 132c may be semitransparent, so that people standing behind the screen 132c can see the game player's movements and images displayed on the monitor 11.
  • the CCD camera 131 has such an angle of view that the screen 132c becomes a visual field, so that background objects (e.g. various objects at an amusement arcade (other game machines, etc.) and people) behind the screen 132c are not included in a picked image.
  • the CCD camera 131 is a color image pickup means in which filters of respective colors of red, green and blue are arranged on the front surfaces of CCDs.
  • the CCD camera 131 picks up an image on the screen 132c in a specified cycle of, e.g. 1/60 sec.
  • the silhouette image extracting device 133 extracts a human silhouette by executing such a processing to delete a blue image from an image data stored in the image memory 131a and including images of the game player and the screen 132c behind the game player. This extraction processing can be performed by simply handling a blue area as a data nonexistent area. Further, in a mode where the screen 132c has a stripe pattern, a processing to delete such a basic pattern area may be performed.
  • the position determining device 135 extracts the head from the human silhouette based on the human silhouette obtained by the silhouette image extracting device 133 and the human silhouette characteristic data stored in the human silhouette characteristic data memory 134 using a pattern recognition technique or like technique, calculates the positions of the eyes at the head, e.g. a center position of the head area and determines the position assuming that the calculated position is the position of the game player's eyes.
  • the obtained position information is sent to the game control unit 100 and then used as a viewing point information as in the first embodiment.
  • the head detector of the present invention may be embodied as follows.
  • the image from the viewing point intended by the game player can be actively displayed by moving the viewing point of the simulated camera to follow free movements of the game player, thereby widening the width of a gaming character and making the game more interesting.
  • the operation unit can be operated in connection with the movement of the viewing point, the progress of the game becomes more interesting.
  • the position of the head in at least one direction on the horizontal plane can be determined based on the output of the sheet-shaped pressure sensor for detecting the position of both feet of the game player.
  • the position of the head on the horizontal plane and its height position can be detected.
  • the center of gravity position of both feet can be detected and the position of the game player's head can be determined using at least this center of gravity position information.
  • the position of the head can be detected without interfering the game player's movements.
  • the position of the game player's head can be detected using one propagation medium transmitter and two propagation medium receivers.
  • the position of the game player's head in the 3D space can be detected using one propagation medium transmitter and three or more propagation medium receivers.
  • the position of the game player's head in one linear direction and its height i.e. the position of his head on a vertical plane can be determined.
  • the position of the game player's head can be determined based on the picked image of the game player.
  • the silhouette can be easily extracted from the picked image of the game player.
  • the position of the game player's head can be determined based on the image obtained by receiving the infrared rays emitted from the infrared emitting member put on the game player.
  • the position of the head can be easily detected since a difference in brightness between the area of the game player's silhouette and the other area can be emphasized.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Processing Or Creating Images (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
EP01118807A 2000-08-11 2001-08-09 Procédé de commande du déplacement du point de vue d'une caméra simulée dans un jeu vidéo 3D, et une appareil de jeu vidéo 3D Withdrawn EP1180384A3 (fr)

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JP2000245251A JP3561463B2 (ja) 2000-08-11 2000-08-11 ３ｄビデオゲームにおける擬似カメラ視点移動制御方法及び３ｄビデオゲーム装置

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AU5796401A (en) 2002-02-14
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JP3561463B2 (ja) 2004-09-02
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